title: [Interest of CSF beta-amyloid1-42 and t-tau protein level determinations for the diagnosis of Alzheimer's disease].
abstract: Early diagnosis of Alzheimer's disease remains a tactful poser. In order to clarify the importance of beta amyloid protein dosage (Abeta1-42) and protein tau (t-tau) in such pathology, we have rigorously studied three well recruited populations that match in age: healthy controls (n = 32), Alzheimer patients (n = 87) and non Alzheimer dementia (n = 31) patients. The combination of Abeta1-42 and t-tau at baseline yielded a sensitivity of 85.29 % for detection of Alzheimer's disease and the specificity was by 96.77 % to differentiate controls. So the combination of these tow markers helps in the diagnosis of Alzheimer because of the high specificity and sensibility of this method.
authors.affiliation: Département de biochimie, Faculté de médecine de Sousse, Tunisie. dalifms@yahoo.fr
authors.forename: M A
authors.initials: MA
authors.lastname: Smach
authors.forename: B
authors.initials: B
authors.lastname: Charfeddine
authors.forename: T
authors.initials: T
authors.lastname: Lammouchi
authors.forename: H
authors.initials: H
authors.lastname: Dridi
authors.forename: L
authors.initials: L
authors.lastname: Ben Othman
authors.forename: S
authors.initials: S
authors.lastname: Bennamou
authors.forename: K
authors.initials: K
authors.lastname: Limem
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000134:cerebrospinal fluid* / Q000175:diagnosis*; D016229:Amyloid beta-Peptides / Q000134:cerebrospinal fluid*; D015415:Biomarkers; D003627:Data Interpretation, Statistical; D003704:Dementia / Q000134:cerebrospinal fluid / Q000175:diagnosis; D015140:Dementia, Vascular / Q000134:cerebrospinal fluid / Q000175:diagnosis; D003937:Diagnosis, Differential; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D020961:Lewy Body Disease / Q000134:cerebrospinal fluid / Q000175:diagnosis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010300:Parkinson Disease / Q000134:cerebrospinal fluid / Q000175:diagnosis; D010446:Peptide Fragments / Q000134:cerebrospinal fluid*; D011569:Psychiatric Status Rating Scales; D012680:Sensitivity and Specificity; D018709:Statistics, Nonparametric; D016875:tau Proteins / Q000134:cerebrospinal fluid*
chemical_list: D016229:Amyloid beta-Peptides; D015415:Biomarkers; D010446:Peptide Fragments; C075222:amyloid beta-protein (1-42); D016875:tau Proteins